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NodeNode / Widget

Refresh Button Widget

Workflow Abstraction Widgets Re-execution
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Adds a button widget with configurable text which can be used to refresh the composite view of the component. The button widget emits reactivity events that trigger the re-execution of downstream nodes in a component when clicked. It allows users to create interactive Data Apps and visualizations.

To use the node, connect the variable output port to the nodes which should be re-executed. The downstream nodes of those connected nodes will also be re-executed when the widget is clicked.

Node details

Output ports
  1. Type: Flow Variable
    Flow Variable Output
    Variable output port to connect to nodes which should be re-executed when the widget is clicked. Downstream nodes of a node connected to this flow variable output port will also be re-executed, so it's only necessary to connect to the root node in each workflow branch for which re-execution is desired. The flow variable value is trivial and does not contain any information.

Extension

The Refresh Button Widget node is part of this extension:

  1. Go to item

Related workflows & nodes

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    knime > Examples > 09_Enterprise > 02_WebPortal > 02_Refresh_Button_Widget_Examples > 02_Refresh_Button_Widget_Example_Sequential_Logic
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  6. Go to item
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    rsrudd > Public > KNIME_demo
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